Finding the Fourth Proportional to 12,200.74, 16,798.52 and 10,763.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.74 : 16,798.52 = 10,763.42 : x
2. Step 2: Convert to fraction form
   12,200.74/16,798.52 = 10,763.42/x
3. Step 3: Cross multiply
   12,200.74x = 16,798.52 × 10,763.42
4. Step 4: Simplify right side
   12,200.74x = 180,809,526.14
5. Step 5: Solve for x
   x = 180,809,526.14/12,200.74
6. Step 6: Final answer
   x = 14,819.55